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Description: | Stromatopora was a microscopic organism which lived in large colonies in the shallow, sunlit, Silurian sea. The Stromatopora are among the chief limestone builders of the Silurian period. They secreted large stony masses composed of thin curved layers. In the limestone quarries in Dudley and Shropshire, the old quarrymen called these masses 'Crog Balls' and 'Self Lumps'. | License: | http://www.imagine.org.uk/about/copyright/ | Rights holder: | Tyne & Wear Museums | Subjects: | fossils natural world | Source: | Tyne and Wear Imagine | Identifier: | http://www.imagine.org.uk/details/index.... | Go to resource |
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